[hammyhavoc]

Case-in-point: why do some biz succeed under one CEO then fail under another quite unexpectedly? The former CEO likely understood their market, their product, their business model, maybe they even dogfooded and used what they made.

The "why?" is frequently more important than the "what?" with biz. An LLM doesn't really have an understanding of how the world works, so I would be very sceptical of its ability to write a sensible business plan. It doesn't even understand the product/service, and the nuances of what it does because it can't experience it.

The LLM is a yes-man with no experiences.

Imagine taking a year-old old book about what worked for someone's biz years ago, then naively assuming it'll work for yours today without considering how the world, market, people, technology et al may have changed in that time. This is the same thing. It assumes x is x. Usually x is not x. People used to compare their biz to Apple, despite not even being in remotely the same industry.